Department of Mathematics and Physics Hunan Institute of Technology Hengyang 421002 China;
SZU-NUS Collaborative Innovation Center for Optoelectronic Science Technology Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;
School of Mathematics and Physics University of South China Hengyang 421001 China;
Department of Mathematics and Physics Hunan Institute of Technology Hengyang 421002 China;
Department of Mathematics and Physics Hunan Institute of Technology Hengyang 421002 China;
Department of Mathematics and Physics Hunan Institute of Technology Hengyang 421002 China;
SZU-NUS Collaborative Innovation Center for Optoelectronic Science Technology Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;
